What is the main advantage of using a combination wrench?

The main advantage of using a combination wrench is its versatility in accommodating different fastener sizes. A combination wrench features both an open-end and a box-end, allowing it to work with various types of fasteners. The open end is helpful for quickly adjusting nuts and bolts, while the box end typically offers a more secure grip and better torque application. This design makes it a practical choice for tasks that involve multiple sizes of fasteners, enhancing efficiency and convenience when working on different projects without the need to switch out tools constantly.

While the ability to work in tight spaces, durability in high-torque situations, and a better grip on rounded fasteners are important features of some wrenches, they do not collectively define the primary benefit of a combination wrench. Its distinctive design aimed at handling various fastener sizes highlights its adaptable nature, which is key to many mechanical tasks.